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php用xpath解析html的代碼實例講解

 更新時間:2019年02月14日 14:44:34   投稿:laozhang  
在本篇文章里小編給大家分享了關于php用xpath解析html的代碼實例講解,對此有需要的朋友們可以學習下。

實例1

$xml = simplexml_load_file('https://forums.eveonline.com'); 
 
$names = $xml->xpath("html/body/p/p/form/p/p/p/p/p[*]/p/p/table//tr/td[@class='topicViews']"); 
foreach($names as $name) 
{ 
 echo $name . "<br/>"; 
}

實例2

$url = 'http://www.baidu.com';
$ch = curl_init();
curl_setopt($ch, CURLOPT_FILE, fopen('php://stdout', 'w'));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_URL, $url);
$html = curl_exec($ch); 
curl_close($ch);
 
// create document object model
$dom = new DOMDocument();
// load html into document object model
@$dom->loadHTML($html);
// create domxpath instance
$xPath = new DOMXPath($dom);
// get all elements with a particular id and then loop through and print the href attribute
$elements = $xPath->query('//*[@id="lg"]/img/@src');
foreach ($elements as $e) {
 echo ($e->nodeValue);
}

以上就是相關的2個實例內(nèi)容,以及相關的代碼, 感謝大家對腳本之家的支持。

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